Itasca leans slightly Republican by roughly 6 points: about 47% of voters vote Democratic and 53% Republican.
About 80% of adults in Itasca typically vote, above the U.S. average of about 62%. Among adults in Itasca, ~38% vote Democratic, ~42% Republican, and ~20% don't vote. The map below shows estimated turnout by block group.
How Itasca compares
Among cities within 25 miles, Itasca leans more Republican than 143 of 179 neighbors.
Itasca runs about 16 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while Itasca is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Itasca. The east side runs the most Democratic (Even) and the southeast side runs the most Republican (R+21), a spread of about 22 points.
Why Itasca leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Itasca, not a ranked or complete list of what matters most.
Itasca votes Republican even though it is densely developed (about 92%, far above the Illinois average of 33%). State and regional patterns outweigh the Democratic lean that density usually predicts here. Itasca runs against the grain of Illinois, a Republican-leaning pocket in a Democratic-leaning state.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Itasca, IL sits in the top tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Itasca looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Itasca is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 72%, about 12 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Medinah, IL R+4
- Wood Dale, IL R+6
- Elk Grove Village, IL D+3
- Addison, IL D+3
- Roselle, IL Even
- Bloomingdale, IL Even
- Bensenville, IL D+8
- Glendale Heights, IL D+14
- Schaumburg, IL D+13
- Villa Park, IL D+17
Cities with Similar Populations
- Spring Hill, KS R+32
- Breinigsville, PA D+6
- Yorkshire, VA D+12
- Rancho Santa Fe, CA R+4
- Clarksville, MD D+34
- Mendota Heights, MN D+22
- Navasota, TX R+15
- Warren, RI D+9
- Fort Oglethorpe, GA R+45
- Gifford, FL D+22
All Local Stats
Home Services
Sources and methodology
Precinct-level voting records used to fit the model come from Illinois State Board of Elections, distributed by the Voting and Election Science Team. Demographic inputs come from the U.S. Census Bureau (ACS 5-year estimates and the 2020 Decennial Census). Health and environmental inputs come from the CDC (PLACES and the Environmental Justice Index). Land cover comes from the USGS and EPA. Election-day and lead-up weather come from PRISM 4km daily grids and the NOAA Global Historical Climatology Network. Mail-voting and election-administration patterns come from the MIT Election Lab's Survey of the Performance of American Elections. Block-group crime detail comes from CrimeGrade. Internet data and modeling support provided by ISPreports.org.
Modeling and analysis by the BestNeighborhood data science team. Full methodology and findings: political spectrum map.
Methodology reviewed by the BestNeighborhood data team. Last updated May 2026.